19666432

素因数分解:

$2^9\times {\mathrm{71}}^1\times {\mathrm{541}}^1$

素因数の和:630

約数の個数: 40

約数和(自身を含む): 39921552

約数和(自身を除く): 20255120

約数列:

[1, 2, 4, 8, 16, 32, 64, 71, 128, 142, 256, 284, 512, 541, 568, 1082, 1136, 2164, 2272, 4328, 4544, 8656, 9088, 17312, 18176, 34624, 36352, 38411, 69248, 76822, 138496, 153644, 276992, 307288, 614576, 1229152, 2458304, 4916608, 9833216, 19666432]

約数ペア:

[(1, 19666432), (2, 9833216), (4, 4916608), (8, 2458304), (16, 1229152), (32, 614576), (64, 307288), (71, 276992), (128, 153644), (142, 138496), (256, 76822), (284, 69248), (512, 38411), (541, 36352), (568, 34624), (1082, 18176), (1136, 17312), (2164, 9088), (2272, 8656), (4328, 4544)]